leveling a twisted neck
The neck on this Puert Rican cuatro is twisted. Instruments made in humid climates commonly suffer problems in New England.
The degree of twisting is severe and will require aggressive planing of the fingerboard.
The edge of the fingerboard reveals the amount of correction needed.
Following the plane an abrasive board is used to do the final leveling.
The upper fingerboard remains to be leveled to insure low action over the body.
The end of the fingerboard that extends into the soundhole does not require leveling.
The thickness of the fingerboard on the treble side has been reduced so much that the fret slots will require reslotting.